Which of the following is a likely explanation for the change in oxygen concentration in response to the time of day?
A.) Most organisms increase the rate of respiration at night.
B.) Organisms are performing photosynthesis during the day and cellular respiration at night.
C.) The oxygen produced by photosynthesis during the day is greater than the amount of oxygen used for respiration.
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Which of the following is a likely explanation for the change in oxygen concentration in response to...
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